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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2391370Generated: October 30, 2026

Water → HCID 57505609, compound

https://huagongshe.com/reaction/2391370

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2,5-Dimethyl-1,3-oxazole-4-carbonyl chlorideHCID 7018020—
ReactantN-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamideHCID 57505446—
SolventDimethylacetamideHCID 31374—
ProductHCID 57505609HCID 5750560972.1%

Reaction Steps

To a solution of N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (200 mg, 0.61 mmol) in N,N-dimethylacetamide (4.0 mL) was added 2,5-dimethyl-1,3-oxazole-4-carbonyl chloride (127 mg, 0.79 mmol), and the mixture was stirred at room temperature for 2 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate, washed with saturated brine, dried over anhydrous sodium sulfate, and filtrated. The solvent was evaporated under reduced pressure, and the residue was washed with ethanol to give the title compound (198 mg, 72%) as a white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273741B2
Source datasetuspto-grants-2012_09
ORD IDord-eefb077b6ead416ca1469fc1e9f4102e
Source noteuspto-grants-2012_09